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https://issues.apache.org/jira/browse/FLINK-22400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rui Li resolved FLINK-22400.
----------------------------
Fix Version/s: 1.14.0
Assignee: hehuiyuan
Resolution: Fixed
Fixed in master: d76d50c7b0df9063233690c40d7fc5cb6ea51367
> NPE problem when call HiveInspectors.toFlinkObject for hive-exec 2.0.0
> ----------------------------------------------------------------------
>
> Key: FLINK-22400
> URL: https://issues.apache.org/jira/browse/FLINK-22400
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Hive
> Reporter: hehuiyuan
> Assignee: hehuiyuan
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.14.0
>
> Attachments: image-2021-04-21-23-18-56-107.png
>
>
> ENV:
> flink 1.12 hive 2.0.0
> ERROR LOG:
> {code:java}
> Caused by: java.lang.RuntimeException: One or more fetchers have encountered
> exception
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcherManager.checkErrors(SplitFetcherManager.java:199)
> at
> org.apache.flink.connector.base.source.reader.SourceReaderBase.getNextFetch(SourceReaderBase.java:154)
> at
> org.apache.flink.connector.base.source.reader.SourceReaderBase.pollNext(SourceReaderBase.java:116)
> at
> org.apache.flink.streaming.api.operators.SourceOperator.emitNext(SourceOperator.java:275)
> at
> org.apache.flink.streaming.runtime.io.StreamTaskSourceInput.emitNext(StreamTaskSourceInput.java:67)
> at
> org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:65)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:399)
> at
> org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:191)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:620)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:584)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:844)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:636)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.RuntimeException: SplitFetcher thread 0 received
> unexpected exception while polling the records
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.runOnce(SplitFetcher.java:146)
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.run(SplitFetcher.java:101)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> ... 1 more
> Caused by: org.apache.flink.connectors.hive.FlinkHiveException:
> java.lang.NullPointerException
> at
> org.apache.flink.connectors.hive.read.HiveMapredSplitReader.nextRecord(HiveMapredSplitReader.java:190)
> at
> org.apache.flink.connectors.hive.read.HiveBulkFormatAdapter$HiveReader.nextRecord(HiveBulkFormatAdapter.java:336)
> at
> org.apache.flink.connectors.hive.read.HiveBulkFormatAdapter$HiveReader.readBatch(HiveBulkFormatAdapter.java:319)
> at
> org.apache.flink.connector.file.src.impl.FileSourceSplitReader.fetch(FileSourceSplitReader.java:67)
> at
> org.apache.flink.connector.base.source.reader.fetcher.FetchTask.run(FetchTask.java:56)
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.runOnce(SplitFetcher.java:138)
> ... 6 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.flink.table.functions.hive.conversion.HiveInspectors.toFlinkObject(HiveInspectors.java:335)
> at
> org.apache.flink.connectors.hive.read.HiveMapredSplitReader.nextRecord(HiveMapredSplitReader.java:180)
> ... 11 more
> {code}
> {code:java}
> Map<?, ?> map = mapInspector.getMap(data);
> hive-exec 2.0.0
> {code}
> AbstractParquetMapInspector Class
> !image-2021-04-21-23-18-56-107.png|width=372,height=191!
>
> Null may be returned here，then throw NPE when call `map.size`
> (map == null)
>
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